Just stuck on a couple in the bottom righthand corner and would appreciate help. 25a. Doing away with former pupil through sound (9) O------N- 18d. Offering job not starting before getting the parisian into trouble (8) O--A---N 19d. Pointed out new books appearing in the act (7) D-N---D. Many thanks in advance.
If I understand it correctly,
Job not starting = OB
before getting 'the Parisian' =LA (the in French)
into trouble = TION (anagram)
Offering = OBLATION